This is going to sound painfully obvious, but take out a plug or two, ground them, turn it over, and check for spark when she's cold. Have a buddy help you if necessary. If you have spark, then it's a fuel/air issue.
Your choke is set like mentioned in prior posts. You said it was ok, but cold air can do weird things to Holleys. One other thing to try regarding your Holley, take it off and blow all your bleeds and any hole you can find out with choke cleaner.
Make sure the motor is cold and loosen the three set screws and turn the black spring housing until the choke blade is completely shut but JUST BARELY shut. You may have to turn it back and forth a bit to get an idea for where it needs to be. After it starts vacuum should pull the blades open some and you then have the high idle cam keeping things going. On that note, make sure your high idle is engaging. Once you stab the throttle once or twice, you shouldn't have to ride the pedal on a new carb. It ought to take care of itself.
I'd stick my head over the primaries and make sure your getting a acc pump shot every time you jack the throttle. If you think it's flooding, open the choke up some. If you get into a parking lot setting again, just stick a screwdriver down the choke horn to keep the blades open to dry 'er out some while you are cranking.
The bottom end may be tired but it should fire if you have fuel, air, and spark.
I would also stay away from ether. That's just a good way to light your air filter on fire.
Dump a couple of cans of Heet in the gas tank too.
I'm just throwing out some thoughts. Your cold blooded Ford may be pissing you off now, but you'll figure it out. Good luck.